Mathematics
Grade-4-
Easy
Question
Use estimation and rounding to choose the appropriate answer for each problem:
A fast food restaurant sold 8,416 hamburgers in a week. If the restaurant opens 7 days a week, how many hamburgers were sold each day?
- 1,200
- 120
- 1,100
- 1,120
Hint:
ROUNDING
One very simple form of estimation is rounding. Rounding is often the key skill you need to quickly estimate a number. This is where you make a long number simpler by ‘rounding’, or expressing in terms of the nearest unit, ten, hundred, tenth, or a certain number of decimal places.
For example, 1,654 to the nearest thousand is 2,000. To the nearest 100 it is 1,700. To the nearest ten it is 1,650.
The correct answer is: 1,200
ROUNDING
One very simple form of estimation is rounding. Rounding is often the key skill you need to quickly estimate a number. This is where you make a long number simpler by ‘rounding’, or expressing in terms of the nearest unit, ten, hundred, tenth, or a certain number of decimal places.
For example, 1,654 to the nearest thousand is 2,000. To the nearest 100 it is 1,700. To the nearest ten it is 1,650.
Total hamburgers sold by a restaurant in one week(7days) = 8,416
Total hamburgers sold per day = 8416 ÷ 7 = 1,202.285 
1,200. (Rounding off to nearest hundreds)
Thus, the restaurant sold about 1200 burgers each day.
Total hamburgers sold by a restaurant in one week(7days) = 8,416
Total hamburgers sold per day = 8416 ÷ 7 = 1,202.285
1,200. (Rounding off to nearest hundreds)Thus, the restaurant sold about 1200 burgers each day.
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